• 责任者：Hao Yanli (Institute of Geology ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Huang Qishuai
• 刊名：Acta Petrologica Sinica
• 出版年：2011
• 卷期：27(10)
• 关键词：苦橄岩 ; picrite ; 云南 ; Yunnan Province
• 页码：p.2937-2946
• 图表：6 illus., 2 tables, 43 refs.
• 分类号：0801
• issnNo：ISSN1000-0569
• isbnNo：CN11-1922/P

Dali picrite in Yunnan Province occurs at the bottom of Emeishan basalt in the inner zone of Emeishan Large Igneous Province (ELIP). The analysis of mineral chemistry indicates the features of typical picrites. The results show that the rock-forming materials might have originated from the depleted sources instead of from such rich or fertile areas as the boundary of the core-mantle, while the γOs values of whole-rock vary from -1.11 to -3.24, obviously the mixing result of olivine, spinel and matrix. It is inferred that the formation of ELIP should be attributed to the interaction between the crust and the mantle.